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The compound, diborane is used as rocket fuel. The equation for the combustion of diborane is shown below. B₂H₁ (g) + 302 (g) → B₂O3 (s) + 3H₂O (1) Calculate the enthalpy of combustion of diborane (B₂H) in kJ/mol using the following data. 2B (s) + 3H₂(g) → B₂H₁ (g) AH = 36 kJ/mol H₂ (g) + 2O2 (g) → H₂O (1) AH = -286 kJ/mol 2B (s) + 1/20 2(g) → B₂O3 (s) AH = -1274 kJ/mol Select one: O a. 2168 kJ/mol O b. -1274 kJ/mol c. -2168 kJ/mol d. -36 kJ/mol

The compound, diborane is used as rocket fuel. The equation for the combustion of diborane is shown below. B₂H₁ (g) + 302 (g) → B₂O3 (s) + 3H₂O (1) Calculate the enthalpy of combustion of diborane (B₂H) in kJ/mol using the following data. 2B (s) + 3H₂(g) → B₂H₁ (g) AH = 36 kJ/mol H₂ (g) + 2O2 (g) → H₂O (1) AH = -286 kJ/mol 2B (s) + 1/20 2(g) → B₂O3 (s) AH = -1274 kJ/mol Select one: O a. 2168 kJ/mol O b. -1274 kJ/mol c. -2168 kJ/mol d. -36 kJ/mol

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.41QE
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The compound, diborane is used as rocket fuel. The equation for the combustion of diborane is shown below. B₂H₁ (g) + 302 (g) → B₂O3 (s) + 3H₂O (1) Calculate the enthalpy of combustion of diborane (B₂H) in kJ/mol using the following data. 2B (s) + 3H₂(g) → B₂H₁ (g) AH = 36 kJ/mol H₂ (g) + 2O2 (g) → H₂O (1) AH = -286 kJ/mol 2B (s) + 1/20 2(g) → B₂O3 (s) AH = -1274 kJ/mol Select one: O a. 2168 kJ/mol O b. -1274 kJ/mol c. -2168 kJ/mol d. -36 kJ/mol
Transcribed Image Text:The compound, diborane is used as rocket fuel. The equation for the combustion of diborane is shown below. B₂H₁ (g) + 302 (g) → B₂O3 (s) + 3H₂O (1) Calculate the enthalpy of combustion of diborane (B₂H) in kJ/mol using the following data. 2B (s) + 3H₂(g) → B₂H₁ (g) AH = 36 kJ/mol H₂ (g) + 2O2 (g) → H₂O (1) AH = -286 kJ/mol 2B (s) + 1/20 2(g) → B₂O3 (s) AH = -1274 kJ/mol Select one: O a. 2168 kJ/mol O b. -1274 kJ/mol c. -2168 kJ/mol d. -36 kJ/mol
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